Table 1.
Types of FDA-Certified Fiducial Markers
| Company | Fiducial marker | Material | Diameter (mm) | Length (mm) | Shape |
|---|---|---|---|---|---|
| Best Medical International (USA) | Loose Gold Marker | Gold | 0.80 | 3 | Cylindrical |
| Naslund Medical AB (Sweden) | Gold Anchor | Gold | 0.28 | 10 or 20 | Folded line shape (ball shape) |
| RadioMed Corporation/IBA (Germany) | Visicoil | Gold | 0.35 | 10 | Helical coil |
| Cook Medical (USA) | EchoTip Ultra Fiducial Needle | Gold | 0.43 | 5 | Step shape |
| Medtronic (USA) | Beacon FNF Preloaded Needle | Gold | 0.43 | 5 | Cylindrical (knurled exterior design) |
| RadioMed Corporation/IBA (Germany) | Visicoil MR | Platinum | 0.35 or 0.75 | 5 or 10 | Helical coil |
| Boston Scientific (USA) | LumiCoil | Platinum | 0.46 | 5 or 10 | Coiled outer sheath, figure-of-eight or straight shape |
| Carbon Medical Technologies Inc. (USA) | Acculoc Carbon Marker | Carbon | 1.00 | 3 | Cylindrical |
FDA, Food and Drug Administration